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1.
Sex Transm Infect ; 99(8): 534-540, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37607814

RESUMEN

BACKGROUND: The potential of HIV self-testing (HIVST) to cause harm is a concern hindering widespread implementation. The aim of this paper is to understand the relationship between HIVST and harm in SELPHI (An HIV Self-testing Public Health Intervention), the largest randomised trial of HIVST in a high-income country to date. METHODS: 10 111 cis and trans men who have sex with men (MSM) recruited online (geolocation social/sexual networking apps, social media), aged 16+, reporting previous anal intercourse and resident in England or Wales were first randomised 60/40 to baseline HIVST (baseline testing, BT) or not (no baseline testing, nBT) (randomisation A). BT participants reporting negative baseline test, sexual risk at 3 months and interest in further HIVST were randomised to three-monthly HIVST (repeat testing, RT) or not (no repeat testing, nRT) (randomisation B). All received an exit survey collecting data on harms (to relationships, well-being, false results or being pressured/persuaded to test). Nine participants reporting harm were interviewed in-depth about their experiences in an exploratory substudy; qualitative data were analysed narratively. RESULTS: Baseline: predominantly cis MSM, 90% white, 88% gay, 47% university educated and 7% current/former pre-exposure prophylaxis (PrEP) users. Final survey response rate was: nBT=26% (1056/4062), BT=45% (1674/3741), nRT=41% (471/1147), RT=50% (581/1161).Harms were rare and reported by 4% (n=138/3691) in exit surveys, with an additional two false positive results captured in other study surveys. 1% reported harm to relationships and to well-being in BT, nRT and RT combined. In all arms combined, being pressured or persuaded to test was reported by 1% (n=54/3678) and false positive results in 0.7% (n=34/4665).Qualitative analysis revealed harms arose from the kit itself (technological harms), the intervention (intervention harms) or from the social context of the participant (socially emergent harms). Intervention and socially emergent harms did not reduce HIVST acceptability, whereas technological harms did. DISCUSSION: HIVST harms were rare but strategies to link individuals experiencing harms with psychosocial support should be considered for HIVST scale-up. TRIAL REGISTRATION NUMBER: ISRCTN20312003.


Asunto(s)
Infecciones por VIH , Minorías Sexuales y de Género , Masculino , Humanos , Homosexualidad Masculina , Autoevaluación , VIH , Gales , Infecciones por VIH/diagnóstico , Infecciones por VIH/prevención & control , Infecciones por VIH/psicología , Inglaterra
2.
Artículo en Inglés | MEDLINE | ID: mdl-31936798

RESUMEN

SELPHI involves two interventions: (A) It provides one HIV self-testing (HIVST) kit; (B) It offers 3-monthly repeat HIVST kits if participants report ongoing risk. A logic model underpinned by the Behaviour Change Wheel informed the design of the intervention. SELPHI recruited 10,135 cis-men and trans people in England and Wales, all reporting anal sex with a man. This paper explores how the interventions were experienced and the pathways to impact for different groups of trial participants. In-depth interviews with 37 cis-men who have sex with men (MSM) were used to inductively categorise participants based on sexual and HIV testing histories. Themes relating to intervention experiences and impacts were mapped onto SELPHI-hypothesised intermediate outcomes to consider intervention impacts. Three groups were identified: 'Inexperienced testers' engaged with SELPHI to overcome motivational and social and physical opportunity testing barriers. For 'pro self-testers', testing frequency was constrained by psychological and social barriers and lack of opportunity. 'Opportunistic adopters' engaged in HIVST for novelty and convenience. Perceived impacts for inexperienced testers were most closely aligned with the logic model, but for opportunistic adopters there was little evidence of impact. Distinctive groups were discernible with divergent intervention experiences. Using COM-B as a model for understanding behaviour change in relation to HIVST, our results indicate how HIVST interventions could be adapted to respond to different needs based on the target population's demographic and behavioural features.


Asunto(s)
Infecciones por VIH/diagnóstico , Infecciones por VIH/prevención & control , Tamizaje Masivo/métodos , Tamizaje Masivo/psicología , Pruebas Serológicas/estadística & datos numéricos , Minorías Sexuales y de Género/psicología , Adulto , Demografía , Inglaterra , Infecciones por VIH/psicología , Humanos , Entrevistas como Asunto , Masculino , Pruebas Serológicas/psicología , Minorías Sexuales y de Género/estadística & datos numéricos , Gales
3.
BMC Infect Dis ; 18(1): 531, 2018 Oct 23.
Artículo en Inglés | MEDLINE | ID: mdl-30352556

RESUMEN

BACKGROUND: Among men who have sex with men (MSM) in the UK, an estimated 28% have never tested for HIV and only 27% of those at higher risk test at least every 6 months. HIV self-testing (HIVST), where the person takes their own blood/saliva sample and processes it themselves, offers the opportunity to remove many structural and social barriers to testing. Although several randomised controlled trials are assessing the impact of providing HIVST on rates of HIV testing, none are addressing whether this results in increased rates of HIV diagnoses that link to clinical care. Linking to care is the critical outcome because it is the only way to access antiretroviral treatment (ART). We describe here the design of a large, internet-based randomised controlled trial of HIVST, called SELPHI, which aims to inform this key question. METHODS/DESIGN: The SELPHI study, which is ongoing is promoted via social networking website and app advertising, and aims to enroll HIV negative men, trans men and trans women, aged over 16 years, who are living in England and Wales. Apart from the physical delivery of the test kits, all trial processes, including recruitment, take place online. In a two-stage randomisation, participants are first randomised (3:2) to receive a free baseline HIVST or no free baseline HIVST. At 3 months, participants allocated to receive a baseline HIVST (and meeting further eligibility criteria) are subsequently randomised (1:1) to receive the offer of regular (every 3 months) free HIVST, with testing reminders, versus no such offer. The primary outcome from both randomisations is a laboratory-confirmed HIV diagnosis, ascertained via linkage to a national HIV surveillance database. DISCUSSION: SELPHI will provide the first reliable evidence on whether offering free HIVST via the internet increases rates of confirmed HIV diagnoses and linkage to clinical care. The two randomisations reflect the dual objectives of detecting prevalent infections (possibly long-standing) and the more rapid diagnosis of incident HIV infections. It is anticipated that the results of SELPHI will inform future access to HIV self-testing provision in the UK. TRIAL REGISTRATION: DOI 10.1186/ISRCTN20312003 registered 24/10/2016.


Asunto(s)
Infecciones por VIH/diagnóstico , Tamizaje Masivo/métodos , Adolescente , Adulto , Inglaterra , Femenino , Homosexualidad Masculina , Humanos , Internet , Masculino , Pruebas Serológicas , Minorías Sexuales y de Género , Red Social , Encuestas y Cuestionarios
4.
Environ Sci Technol ; 51(21): 12302-12309, 2017 Nov 07.
Artículo en Inglés | MEDLINE | ID: mdl-29028327

RESUMEN

In this work, recovery of aluminum from coagulated primary sludge and its reuse potential as secondary coagulant were investigated. The recovery process consisted of releasing the particle-bound aluminum from primary sludge by acidification (HCl or H2SO4), followed by separation using centrifugation for dissolved coagulant recovery. The recovered coagulant was then reused for treating primary wastewater and overall coagulation efficiency was determined. While with fresh alum, the removal efficiencies of total suspended solids, chemical oxygen demand, total phosphorus, and total nitrogen were 85%, 65%, 80% and 33%, respectively, a drop in removal efficiency of total suspended solids and chemical oxygen demand was observed for recovered aluminum (85-60% and 65-50%, respectively). Nitrogen concentration remained almost constant with each cycle, while phosphorus in the effluent increased by 1 mg/L and 3 mg/L in the first and second cycle, respectively. Precipitation of various aluminum species was modeled for determining the recovery potential of aluminum at low pH. Preliminary cost analysis indicates that optimum recovery of aluminum occurred at a pH of 1.5 for both acids. Struvite precipitation effectively removed increased phosphorus solubilized by acidification at the end of second cycle, however, it also decreased the amount of aluminum available for recycle.


Asunto(s)
Carbono , Fósforo , Aguas Residuales , Aluminio , Nitrógeno , Aguas del Alcantarillado , Eliminación de Residuos Líquidos , Purificación del Agua
5.
Crit Care Med ; 43(9): 1964-77, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26154929

RESUMEN

OBJECTIVES: To describe unique features of neurocritical illness that are relevant to provision of high-quality palliative care; to discuss key prognostic aids and their limitations for neurocritical illnesses; to review challenges and strategies for establishing realistic goals of care for patients in the neuro-ICU; and to describe elements of best practice concerning symptom management, limitation of life support, and organ donation for the neurocritically ill. DATA SOURCES: A search of PubMed and MEDLINE was conducted from inception through January 2015 for all English-language articles using the term "palliative care," "supportive care," "end-of-life care," "withdrawal of life-sustaining therapy," "limitation of life support," "prognosis," or "goals of care" together with "neurocritical care," "neurointensive care," "neurological," "stroke," "subarachnoid hemorrhage," "intracerebral hemorrhage," or "brain injury." DATA EXTRACTION AND SYNTHESIS: We reviewed the existing literature on delivery of palliative care in the neurointensive care unit setting, focusing on challenges and strategies for establishing realistic and appropriate goals of care, symptom management, organ donation, and other considerations related to use and limitation of life-sustaining therapies for neurocritically ill patients. Based on review of these articles and the experiences of our interdisciplinary/interprofessional expert advisory board, this report was prepared to guide critical care staff, palliative care specialists, and others who practice in this setting. CONCLUSIONS: Most neurocritically ill patients and their families face the sudden onset of devastating cognitive and functional changes that challenge clinicians to provide patient-centered palliative care within a complex and often uncertain prognostic environment. Application of palliative care principles concerning symptom relief, goal setting, and family emotional support will provide clinicians a framework to address decision making at a time of crisis that enhances patient/family autonomy and clinician professionalism.


Asunto(s)
Encefalopatías/terapia , Cuidados Críticos/organización & administración , Unidades de Cuidados Intensivos/organización & administración , Cuidados Paliativos/organización & administración , Cuidado Terminal/organización & administración , Comunicación , Toma de Decisiones , Indicadores de Salud , Humanos , Planificación de Atención al Paciente , Pronóstico , Factores de Tiempo , Obtención de Tejidos y Órganos/organización & administración , Privación de Tratamiento
6.
Chest ; 147(2): 560-569, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25644909

RESUMEN

Rapid response teams (RRTs) can effectively foster discussions about appropriate goals of care and address other emergent palliative care needs of patients and families facing life-threatening illness on hospital wards. In this article, The Improving Palliative Care in the ICU (IPAL-ICU) Project brings together interdisciplinary expertise and existing data to address the following: special challenges for providing palliative care in the rapid response setting, knowledge and skills needed by RRTs for delivery of high-quality palliative care, and strategies for improving the integration of palliative care with rapid response critical care. We discuss key components of communication with patients, families, and primary clinicians to develop a goal-directed treatment approach during a rapid response event. We also highlight the need for RRT expertise to initiate symptom relief. Strategies including specific clinician training and system initiatives are then recommended for RRT care improvement. We conclude by suggesting that as evaluation of their impact on other outcomes continues, performance by RRTs in meeting palliative care needs of patients and families should also be measured and improved.


Asunto(s)
Unidades de Cuidados Intensivos/organización & administración , Cuidados Paliativos/organización & administración , Directivas Anticipadas , Competencia Clínica , Comunicación , Enfermería de Cuidados Críticos , Toma de Decisiones , Equipo Hospitalario de Respuesta Rápida , Humanos , Relaciones Médico-Paciente
7.
Pediatr Crit Care Med ; 15(8): 762-7, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25080152

RESUMEN

OBJECTIVE: This review highlights benefits that patients, families and clinicians can expect to realize when palliative care is intentionally incorporated into the PICU. DATA SOURCES: We searched the MEDLINE database from inception to January 2014 for English-language articles using the terms "palliative care" or "end of life care" or "supportive care" and "pediatric intensive care." We also hand-searched reference lists and author files and relevant tools on the Center to Advance Palliative Care website. STUDY SELECTION: Two authors (physicians with experience in pediatric intensive care and palliative care) made final selections. DATA EXTRACTION: We critically reviewed the existing data and tools to identify strategies for incorporating palliative care into the PICU. DATA SYNTHESIS: The Improving Palliative Care in the ICU Advisory Board used data and experience to address key questions relating to: pain and symptom management, enhancing quality of life, communication and decision-making, length of stay, sites of care, and grief and bereavement. CONCLUSIONS: Palliative care should begin at the time of a potentially life-limiting diagnosis and continue throughout the disease trajectory, regardless of the expected outcome. Although the PICU is often used for short term postoperative stabilization, PICU clinicians also care for many chronically ill children with complex underlying conditions and others receiving intensive care for prolonged periods. Integrating palliative care delivery into the PICU is rapidly becoming the standard for high quality care of critically ill children. Interdisciplinary ICU staff can take advantage of the growing resources for continuing education in pediatric palliative care principles and interventions.


Asunto(s)
Comités Consultivos , Atención a la Salud/organización & administración , Unidades de Cuidado Intensivo Pediátrico/normas , Cuidados Paliativos/normas , Aflicción , Comunicación , Toma de Decisiones , Humanos , Tiempo de Internación , Manejo del Dolor , Calidad de Vida
8.
Intensive Care Med ; 40(2): 235-248, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24275901

RESUMEN

PURPOSE: Pain, dyspnea, and thirst are three of the most prevalent, intense, and distressing symptoms of intensive care unit (ICU) patients. In this report, the interdisciplinary Advisory Board of the Improving Palliative Care in the ICU (IPAL-ICU) Project brings together expertise in both critical care and palliative care along with current information to address challenges in assessment and management. METHODS: We conducted a comprehensive review of literature focusing on intensive care and palliative care research related to palliation of pain, dyspnea, and thirst. RESULTS: Evidence-based methods to assess pain are the enlarged 0-10 Numeric Rating Scale (NRS) for ICU patients able to self-report and the Critical Care Pain Observation Tool or Behavior Pain Scale for patients who cannot report symptoms verbally or non-verbally. The Respiratory Distress Observation Scale is the only known behavioral scale for assessment of dyspnea, and thirst is evaluated by patient self-report using an 0-10 NRS. Opioids remain the mainstay for pain management, and all available intravenous opioids, when titrated to similar pain intensity end points, are equally effective. Dyspnea is treated (with or without invasive or noninvasive mechanical ventilation) by optimizing the underlying etiological condition, patient positioning and, sometimes, supplemental oxygen. Several oral interventions are recommended to alleviate thirst. Systematized improvement efforts addressing symptom management and assessment can be implemented in ICUs. CONCLUSIONS: Relief of symptom distress is a key component of critical care for all ICU patients, regardless of condition or prognosis. Evidence-based approaches for assessment and treatment together with well-designed work systems can help ensure comfort and related favorable outcomes for the critically ill.


Asunto(s)
Cuidados Críticos/normas , Disnea/terapia , Manejo del Dolor , Cuidados Paliativos , Sed , Disnea/diagnóstico , Humanos , Unidades de Cuidados Intensivos , Dimensión del Dolor , Mejoramiento de la Calidad
9.
Oncotarget ; 4(4): 560-71, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23599180

RESUMEN

Protein kinase CK2 has emerged as a promising candidate for the treatment of a number of cancers. This enzyme is comprised of two catalytic subunits (CK2 and/or CK2α') that form complexes with homodimers of regulatory CK2ß subunits. While catalytic and regulatory CK2 subunits are generally expressed at similar levels to form tetrameric complexes, asymmetric expression of CK2 subunits has been associated with various forms of cancer and the enhanced survival of cancer cells. To elucidate mechanisms responsible for regulation of cancer cell survival by CK2, we recently employed computational and experimental strategies that revealed widespread overlap between sites for CK2 phosphorylation and caspase cleavage. Among candidates with overlapping CK2 and caspase cleavage sites was caspase-3 that is phosphorylated by CK2 to prevent its activation by upstream caspases. To elucidate the precise relationship between CK2 and caspase-3, we modulated expression of individual CK2 subunits and demonstrated that CK2α' exhibits a striking preference for caspase-3 phosphorylation in cells as compared to CK2α and that CK2ß exhibits the capacity to abolish caspase-3 phosphorylation. Since caspase-3 represents the first CK2 substrate selectively phosphorylated by CK2α' in cells, our work highlights divergent functions of the different forms of CK2. Given the involvement of CK2 in a diverse series of biological events and its association with various cancers, this work has important implications for identifying pathological roles of distinct forms of CK2 that could instruct efforts to selectively target individual CK2 subunits for therapy.


Asunto(s)
Quinasa de la Caseína II/química , Quinasa de la Caseína II/metabolismo , Caspasa 3/metabolismo , Neoplasias/metabolismo , Secuencia de Aminoácidos , Western Blotting , Caspasa 3/química , Dominio Catalítico , Supervivencia Celular , Células HeLa , Humanos , Inmunoprecipitación , Isoenzimas/metabolismo , Datos de Secuencia Molecular , Neoplasias/química , Neoplasias/patología , Fosforilación , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Transfección
10.
N Engl J Med ; 368(3): 207-17, 2013 Jan 17.
Artículo en Inglés | MEDLINE | ID: mdl-23323897

RESUMEN

BACKGROUND: Short-course antiretroviral therapy (ART) in primary human immunodeficiency virus (HIV) infection may delay disease progression but has not been adequately evaluated. METHODS: We randomly assigned adults with primary HIV infection to ART for 48 weeks, ART for 12 weeks, or no ART (standard of care), with treatment initiated within 6 months after seroconversion. The primary end point was a CD4+ count of less than 350 cells per cubic millimeter or long-term ART initiation. RESULTS: A total of 366 participants (60% men) underwent randomization to 48-week ART (123 participants), 12-week ART (120), or standard care (123), with an average follow-up of 4.2 years. The primary end point was reached in 50% of the 48-week ART group, as compared with 61% in each of the 12-week ART and standard-care groups. The average hazard ratio was 0.63 (95% confidence interval [CI], 0.45 to 0.90; P=0.01) for 48-week ART as compared with standard care and was 0.93 (95% CI, 0.67 to 1.29; P=0.67) for 12-week ART as compared with standard care. The proportion of participants who had a CD4+ count of less than 350 cells per cubic millimeter was 28% in the 48-week ART group, 40% in the 12-week group, and 40% in the standard-care group. Corresponding values for long-term ART initiation were 22%, 21%, and 22%. The median time to the primary end point was 65 weeks (95% CI, 17 to 114) longer with 48-week ART than with standard care. Post hoc analysis identified a trend toward a greater interval between ART initiation and the primary end point the closer that ART was initiated to estimated seroconversion (P=0.09), and 48-week ART conferred a reduction in the HIV RNA level of 0.44 log(10) copies per milliliter (95% CI, 0.25 to 0.64) 36 weeks after the completion of short-course therapy. There were no significant between-group differences in the incidence of the acquired immunodeficiency syndrome, death, or serious adverse events. CONCLUSIONS: A 48-week course of ART in patients with primary HIV infection delayed disease progression, although not significantly longer than the duration of the treatment. There was no evidence of adverse effects of ART interruption on the clinical outcome. (Funded by the Wellcome Trust; SPARTAC Controlled-Trials.com number, ISRCTN76742797, and EudraCT number, 2004-000446-20.).


Asunto(s)
Antirretrovirales/administración & dosificación , Infecciones por VIH/tratamiento farmacológico , Adulto , Antirretrovirales/efectos adversos , Antirretrovirales/uso terapéutico , Recuento de Linfocito CD4 , Progresión de la Enfermedad , Esquema de Medicación , Femenino , Estudios de Seguimiento , VIH/genética , VIH/aislamiento & purificación , Infecciones por VIH/inmunología , Humanos , Masculino , Persona de Mediana Edad , ARN Viral/sangre , Adulto Joven
11.
Environ Sci Technol ; 46(24): 13432-9, 2012 Dec 18.
Artículo en Inglés | MEDLINE | ID: mdl-23186002

RESUMEN

California's furniture flammability standard Technical Bulletin 117 (TB 117) is believed to be a major driver of chemical flame retardant (FR) use in residential furniture in the United States. With the phase-out of the polybrominated diphenyl ether (PBDE) FR mixture PentaBDE in 2005, alternative FRs are increasingly being used to meet TB 117; however, it was unclear which chemicals were being used and how frequently. To address this data gap, we collected and analyzed 102 samples of polyurethane foam from residential couches purchased in the United States from 1985 to 2010. Overall, we detected chemical flame retardants in 85% of the couches. In samples purchased prior to 2005 (n = 41) PBDEs associated with the PentaBDE mixture including BDEs 47, 99, and 100 (PentaBDE) were the most common FR detected (39%), followed by tris(1,3-dichloroisopropyl) phosphate (TDCPP; 24%), which is a suspected human carcinogen. In samples purchased in 2005 or later (n = 61) the most common FRs detected were TDCPP (52%) and components associated with the Firemaster550 (FM 550) mixture (18%). Since the 2005 phase-out of PentaBDE, the use of TDCPP increased significantly. In addition, a mixture of nonhalogenated organophosphate FRs that included triphenyl phosphate (TPP), tris(4-butylphenyl) phosphate (TBPP), and a mix of butylphenyl phosphate isomers were observed in 13% of the couch samples purchased in 2005 or later. Overall the prevalence of flame retardants (and PentaBDE) was higher in couches bought in California compared to elsewhere, although the difference was not quite significant (p = 0.054 for PentaBDE). The difference was greater before 2005 than after, suggesting that TB 117 is becoming a de facto standard across the U.S. We determined that the presence of a TB 117 label did predict the presence of a FR; however, lack of a label did not predict the absence of a flame retardant. Following the PentaBDE phase out, we also found an increased number of flame retardants on the market. Given these results, and the potential for human exposure to FRs, health studies should be conducted on the types of FRs identified here.


Asunto(s)
Monitoreo del Ambiente , Retardadores de Llama/análisis , Éteres Difenilos Halogenados/análisis , Diseño Interior y Mobiliario , California , Cromatografía de Gases y Espectrometría de Masas , Poliuretanos/análisis
12.
Oncology (Williston Park) ; 22(4 Suppl Nurse Ed): 29-33, 2008 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-19856558

RESUMEN

Palliative care has evolved from end-of-life care following exhaustion of curative therapy to care across the cancer-management continuum. Often initiated concurrently with curative care at the time of diagnosis, palliative care ensures both effective symptom management and the best possible quality of life in four key domains-physical, psychological, social, and spiritual. The significant growth and development of palliative care in the United States is evident in that one in four hospitals now has a palliative care program, palliative medicine is now recognized as an official medical subspecialty by the American Board of Medical Specialties, and national programs offer comprehensive continuing education in palliative care for nurses and physicians. The oncology nurse who provides palliative care does so as part of a multidisciplinary team that includes not only physicians but also can involve chaplains, massage therapists, pharmacists, nutritionists, and other specialists. This article provides resources and reviews and highlights pertinent palliative care issues to guide oncology nurses managing newly diagnosed cancer patients.


Asunto(s)
Neoplasias/enfermería , Enfermería Oncológica/métodos , Cuidados Paliativos/métodos , Recursos en Salud , Humanos , Enfermería Oncológica/educación , Cuidados Paliativos/organización & administración , Guías de Práctica Clínica como Asunto
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